let a = 0;

function f() {
  return ++a;
}

let x = do {
  let t = f();
  t * t + 1;
};
var countantize = (obj) => {
  Object.freeze(obj);
  Object.keys(obj);
};

function bar(y) {
  console.log(this)
}
function foo(x) {
  console.log(x)
  console.log(this)
}

bar::foo(111);

let obj = {
  foo(x){
    console.log(x);
  }
};



export default x;
